Organisation of the body Essay Example | Topics and Well Written Essays - 1500 words

Organisation of the body - Essay Example The major functions entail the intensification of DNA in order to facilitate the process of mitosis; it equally assists in the smaller casing of DNA so as to fit in the cell; it also controls replication of DNA and gene expression; it also inhibits the damage of DNA. They are normally reffered to as the cell’s powerhouse due to its ability to perform the role of the cell’s digestive system in which it uptakes nutrients, and synthesizes them into energy through cellular respiration. They function by breaking down cellular debris and waste materials through the action by acids known as hydrolase enzymes. In this regard, the lysosomes digest worn out or excess organelles, bacteria or engulfed viruses and food matter. The red blood cells have a flattened disc like shape or a biconcave shape which increases the surface area over volume ratio.In this regard, the diffusion of carbon dioxide and oxygen across the plasma of the red blood cells occurs at a faster rate.Moreover, the red blood cells are elastic and flexible thus they are able to fit the small capillaries. In addition, the red blood cells have a thin wall cell to assist in the effortless oxygen diffusion. The red blood cells equally lack cell structures such as ribosomes, mitochondria and nucleus. In this regard, they are able to pack large amounts of hemoglobin due to the increase in space within the cells. The hemogloblin performs the role of taking in oxygen from the lungs and consequently releasing it to the rest of the body. The ciliate epithelial cells have an overlapping and flat structure which facilitates the minimal use of space in the cell. It equally assists in providing a barrier to the exterior. Furthermore, it assists in offering a lightweight skin structure. In addition, it facilitates the shedding of individual cells. The sperm cell is specialized to carry out its function in a variety

Memorandom to the Minister- Water Policy alternatives Essay

Memorandom to the Minister- Water Policy alternatives - Essay Example tegy which can balance the domestic needs of the country as well as ensure that Water can serve as one of the lucrative commodity for the country and a mean to earn foreign exchange. This memorandum therefore will provide a brief discussion on the need for having a new water strategy and what economic options may be set to effectively utilize water resources of the country in most optimal manner. Over the period of time Canada has developed a very good market for its water in international markets. However, despite the benefits which country is availing by exporting its water, there is a growing concern that if same practices are continued, the domestic needs of the country for its agriculture as well as domestic purposes may not be fulfilled. There is therefore a greater need for the development of new water strategy which can balance both the objectives and help utilize the natural resources of the country in most optimal manner. (CBC News) 1. New Policy completely put restrictions on the export of the water out of the country in order to fulfill the domestic needs and ensure sustainable levels of water availability for long run. This will however, restrict the country’s ability to generate sufficient foreign exchange and thus may put adverse impacts on its trade balance. (Raider) 2. It is also possible to discuss the possibility of implementing tariffs or quota on the export of water from the water. Imposition of the quote however may result into higher domestic prices for the water. 3. New policy may set the different price alternatives for both the domestic and export use of the water. Further, export duties shall be applied in order to make the export of Canada’s water more expensive for foreign buyers. Minister shall recommend and lobby for the development of a joint forum which can evaluate the domestic needs for the water and develop set of recommendations which can provide a balance assessment of demand and supply of water and how excess water